Two New Dyes with Carboxypyridinium Regioisomers as Anchoring Groups for Dye-Sensitized Solar Cells
- Franchi, Daniele
- Calamante, Massimo
- Reginato, Gianna
- Zani, Lorenzo
- Peruzzini, Maurizio
- Colonna, Daniele
- Di Carlo, Aldo
- Mordini, Alessandro
- TADDEI, MAURIZIO
- FABRIZI DE BIANI, FABRIZIA
- BASOSI, RICCARDO
- SINICROPI, ADALGISA
DOIAbstract
Two new organic dye-sensitized solar cell (DSSC) sensitizers bearing regioisomeric carboxyl-N-methylpyridinium moieties were prepared and fully characterized. Based on TD-DFT calculations, they were anticipated to show a significantly red-shifted absorption spectrum compared to normal carboxypyridines and other regioisomeric pyridinium salts. Although this prediction was met, the two regioisomers unexpectedly showed very different stabilities upon adsorption on TiO2
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